Spectroscopic and Laser Properties of Yb:Lu3Al5O12 Crystal under Different Annealing Atmospheres

Xiaodan, 王晓丹 Wang; Chunlan, 马春兰 Ma; Xiaodong, 徐晓东 Xu; Zhiwei, 赵志伟 Zhao; Xiaoyan, 梁晓燕 Liang; Jun, 徐军 Xu

doi:10.3788/cjl20103704.1099

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“…Figure 8 shows the emission spectra of Yb 2+ -doped fiber with a length of 30 cm and excitations of 365 and 405 nm as a function of pump power: 100 and 150 mW for the 365 nm laser, and 100, 200, 400 and 600 mW for the 405 nm laser. Broad emission bands centered at 561 nm were observed with the excitation of 365 nm, which is attributed to the typical 4f 13 5d 1 -4f 14 transitions of Yb 2+ ions [32]. The emission band covered wavelengths from 500 to 650 nm, and the full width at half maximum (FHWH) of the emission band was up to 82 nm.…”

Section: Resultsmentioning

confidence: 93%

Divalent Yb-Doped Silica Glass and Fiber with High Quantum Efficiency for White Light Source

et al. 2022

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The 4f135d–4f14 energy transition of Yb2+ ions can cover the whole white light wavelength, Yb2+-doped materials have thus been a hot research field. In order to obtain a white light source, many kinds of Yb2+-doped materials have been prepared. In this study, divalent Yb2+-doped silica fiber was fabricated using rod-in-tube technology. The fiber core of Yb2+-doped silica glass was prepared with high-temperature melting technology under vacuum conditions. The spectroscopic properties of the Yb2+-doped glass and fiber were studied. The experiments indicate that divalent Yb2+-doped glass has a high quantum efficiency and super-broadband fluorescence in the visible region with an excitation wavelength of 405 nm. In addition, the results suggest that Yb2+-doped fiber has a potential for application in visible fiber lasers and fiber amplification.

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Section: Resultsmentioning

confidence: 93%